Da-Jin Chu

@dajin.dev

programmer, board gamer, massachusetts guy

Software factories are a bad analogy that completely misunderstand the nature of software engineering. Wrote some thoughts on a better analogy, which also helped me think through where coding agents work well and where they don't. dajin.dev/posts/software_factory

Software factories are a bad analogy

Fully automated “software factories” are allegedly right on the horizon. Some companies claim their factories are “dark,” a phrase borrowed from manufacturing, where fully …

dajin.dev

#atprotonyc community day was so fun (loved the badge printer)! Thanks to the organizers and to all the friendly and smart attendees I got to meet!

Joe Basser@joebasser.com · last wk.

Special thanks to @sri.xyz's work on some fantastic tickets API integrations - scanners, badge printing and more. Thank you to all the organizers @bnb.im @schlage.town @awarm.space @cozylittle.house @julietshen.online @teonbrooks.com @iame.li @recurse.com and anyone else I might be forgetting!

Massachusetts is the only blue state with a formal ICE contract called 287(g), and it has already transferred over two thousand people into ICE custody. The immigrant protection bill, the PROTECT Act, currently before the legislature leaves the current 287(g) agreement intact.

In today’s @bostonglobe.com Kenia Guerrero writes about the loss of her husband. He is not dead but he is gone, disappeared by ICE. Please — I implore you — read every word and share. Since the Globe doesn’t have gift articles I have screenshotted the entire piece. We can’t turn away from this. 1/2

KENIA GUERRERO
ICE deported my husband.
Our everything is gone, and we are unraveling.
This is not just an immigration issue. This is an issue of basic humanity. It is the brutal unraveling of a family.
Kenia Guerrero • Updated June 30th, 2025, 7:38 AM
• Listen
Kenia Guerrero is co-owner of a painting business in Chelsea.
On Mother's Day, May 11, my life fell apart.
What should have been a day to celebrate family unity culminated in family separation at the hands of Immigration and Customs Enforcement in Chelsea.That morning, my husband, Daniel Flores-Martinez, noticed suspicious cars parked down the street from our home, but we continued our daily activities. We prepared ourselves to head to church. My husband helped our three children get into the car, including our 12-year-old daughter, who lives with multiple disabilities. A few minutes after driving away, we saw flashing lights behind us. I pulled over.
Suddenly, the suspicious cars my husband had seen surrounded us. Masked, armed officers swarmed our vehicle from both sides. One of them asked for my
identification, but he was clearly interested in my husband, not me. He insisted on knowing who my husband was.
I know my rights as a US citizen, and as the driver, I asked why they wanted to know about a passenger. I asked who they were and why our car had been stopped.
But I received no answers. Within moments, one of the officers raised what looked like a weapon and used it to tap the glass of the passenger window, suddenly threatening to break it. I begged them not to use violence because my children were in the back seat.Without any regard for our safety, they smashed the passenger-side window.
Glass shards flew into the car, even into the back seat, where our children were sitting. They screamed. We were all terrified. Within seconds, ICE officers physically reached inside the vehicle through the shattered window and unlocked the front passenger door. Then the officers opened the door and unbuckled Daniel's seat belt. They forcefully yanked him out of the car. They slammed him face down onto the sidewalk, their knees pressed into his back, even though he never resisted. A bystander captured it all on video.
I ran out to see what was happening, but an officer restrained me. I pleaded with her, saying, "Aren't you a mother?" But the officers did not stop. My children sobbed as the officers arrested Daniel, taking him away. No one ever told us who they were.
No one showed a warrant. And just like that, Daniel was gone.
Now he has been deported. And we are left behind.Daniel, an undocumented immigrant, was deported to Matamoros, Mexico - even though he has no ties there.
Daniel is a loving father and a devoted husband, and he helps run our small family painting business. He is the backbone of our home, community, and church. His sudden and violent removal has left our family in crisis - medically, emotionally, and economically.
Our daughter is disabled. She lives with epilepsy, hydrocephalus, and cerebral palsy. These conditions require constant medical care and hands-on support. She cannot dress or bathe without assistance.
Daniel provided all this care unassumingly, with love and diligence, every single day.
Since he was taken, our daughter's condition has worsened. Her mental health has deteriorated. She lacks motivation to attend school and has a hard time focusing in class. How can anyone blame her? Her father is gone.
I am doing my best, but I am now the sole caregiver to our children - our daughter and two sons, ages 14 and 3- and I am struggling.

Trump says he wants to send Americans to gulags in El Salvador: "I love that. If we could take some of our 20 time wiseguys that push people into subways ... if he would take them, I would be honored to give them. I don't know what the law says on that ... I'm all for it."

Massive turnout for Hands Off rally in Boston. Organizers estimate 100k. That's ~2% of Boston metro area population. People are pissed.

Crowd in Boston city hall plaza